Exponential function in terms of logarithms

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Homework Statement


Express b^{x} as a function of logarithms.


Homework Equations


There are a couple of equations in the attempted solution. I can't say if they are actually relevant


The Attempt at a Solution



I've investigated the property
y = log_{b}(b^{y}),
and also
log_{b}(y) = \frac{log_{k}(y)}{log_{k}(b)}

This hasn't help me any.
 
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I got it. It's

b^{x} = e^{x ln(b)} = b + \frac{x ln(b)}{1!}+ \frac{(x ln(b))^{2}}{2!}+ \frac{(x ln(b))^{3}}{3!}+ \frac{(x ln(b))^{4}}{4!}+...
 
Last edited:
Never mind, my mistake.
 
There are two things I don't understand about this problem. First, when finding the nth root of a number, there should in theory be n solutions. However, the formula produces n+1 roots. Here is how. The first root is simply ##\left(r\right)^{\left(\frac{1}{n}\right)}##. Then you multiply this first root by n additional expressions given by the formula, as you go through k=0,1,...n-1. So you end up with n+1 roots, which cannot be correct. Let me illustrate what I mean. For this...
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